Waveguide grating-based wavelength selective switch actuated...

Details Waveguide grating-based wavelength selective switch actuated... Waveguide grating-based wavelength selective switch actuated...

2005-12-06

2005-12-06

Frech, Karl D. (Department: 2876)

Optical waveguides

With optical coupler

Plural

C385S015000

Reexamination Certificate

active

06973231

ABSTRACT:
A wavelength selective switch. The switch comprises an input waveguide for carrying an optical signal having a wavelength λi. Also included is an output waveguide having a Bragg grating adapted for coupling the wavelength λiinto the output waveguide in a coupling zone. Finally, provided is a heater element that can selectively provide thermal energy to the coupling zone such that the Bragg grating does not couple the wavelength λi.

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